CN202132798U

CN202132798U - LED spot light

Info

Publication number: CN202132798U
Application number: CN201120194944U
Authority: CN
Inventors: 李扬; 张伟; 华桂潮
Original assignee: Led One Hangzhou Co Ltd
Current assignee: New light sources re-invent industry center, associating Guangdong, Nanhai District Foshan City
Priority date: 2011-06-10
Filing date: 2011-06-10
Publication date: 2012-02-01
Anticipated expiration: 2021-06-10

Abstract

The utility model discloses a LED spot light, comprising a spot light shell, a light body, a base plate seat with a LED light source which are connected in turn, wherein a cavity is formed by the inner surface of the spot light shell and one end of the light body, a fan and a circuit board are arranged in the cavity; the light body is respectively provided with an air inlet through hole and an air outlet channel communicated with the cavity, a fin with an arc surface is arranged on the inner wall of the air outlet channel, the extension direction of the fin is same to the extension direction of a fan blade; the cross section of the air outlet channel gradually decreases from the air inlet end to the air outlet end; a base plate through hole communicated with the air outlet channel is arranged on the base plate seat; the circuit board is respectively electrically connected with the fan and the base plate seat. The heat radiation of the LED spot light with relative small volume is effectively increased due to the function of the fan, the fin with the special arc surface and in same extension direction to the fan blade and the air inlet channel with gradually decreased cross section.

Description

A kind of LED shot-light

Technical field

The utility model relates to lighting technical field, more particularly relates to a kind of LED shot-light.

Background technology

Shot-light is the modern school illumination of typically not having king light, not having the set pattern mould.Because shot-light can free translation-angle, the effect of combination lighting is ever-changing, and therefore, it can local daylighting, heighten atmosphere.Shot-light can be installed in around the furred ceiling, on the wall, in dado or the skirting.So-called LED shot-light is for the shot-light of LED (Light Emitting Diode, light emitting diode) as light source.The LED shot-light is much better than traditional shot-light on the aspect of principle of luminosity, energy-saving and environmental protection, and the luminous one-way of LED has formed the perfection support to the shot-light luminous intensity distribution.Therefore the LED shot-light is widely used, and has received extensive concern.

Because the side of LED shot-light, back are all surrounded by the installing rack of light fixture or lamp tube, cause it to have only light-emitting area to contact fully with outside air.For the less LED shot-light of existing volume, for example: the MR16LED shot-light, heat exchange is carried out through light-emitting area and outside air free convection mode in its inside, thereby reaches the purpose of heat radiation.And led light source produces heat power and is higher than heat radiation power far away, causes shot-light inside can not well realize heat radiation, thereby has reduced LED shot-light service life, and the light source power of LED shot-light is restricted simultaneously.

The utility model content

In view of this, the utility model provides a kind of LED shot-light, to improve the thermal diffusivity of the less LED shot-light of volume.

For realizing above-mentioned purpose, the utility model provides following technical scheme:

A kind of LED shot-light comprises:

Shot-light shell, the lamp body that links to each other successively, be provided with the substrate holder of led light source;

Said shot-light inner surface of outer cover and said lamp body one end constitute cavity, are provided with fan, circuit board in the said cavity; Said lamp body is provided with air intake through hole and the air-out passage that communicates with said cavity respectively, and the fin with cambered surface is set on the said air-out vias inner walls, and the bearing of trend of said fin is identical with the bearing of trend of said electric fan; The cross section of said air-out passage is reduced by its air intake to its outlet air end gradually;

The substrate through-hole that communicates with said air-out passage is set on the said substrate holder;

Said circuit board is electrically connected with said fan, said substrate holder respectively.

Can know via above-mentioned technical scheme; Fan rotates and makes the cavity internal gas pressure reduce; Under the effect of draught head, outside air gets into cavity through air intake through hole on the lamp body, then successively through passing through fan, fin with specific cambered surface; Flow out from the air-out passage, and then realized the cross-ventilation of shot-light inside with external environment.During this enforcement is novel; Through fan, have the effect of specific cambered surface and the fin identical, air-out passage that cross section reduces gradually with the electric fan bearing of trend; Can guarantee to get into the air-out passage smoothly and be discharged to external environment through the air of passing through fan; Realize cross-ventilation, thereby can effectively improve the thermal diffusivity of the less LED shot-light of volume.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the explosive view of a kind of LED shot-light that the utility model provided;

Fig. 2 is a kind of LED shot-light cutaway view that the utility model provided;

Fig. 3 is the vertical view of the lamp body of a kind of LED shot-light that the utility model provided;

Fig. 4 is the circulation of air sketch map of a kind of LED shot-light that the utility model provided.

The specific embodiment

The utility model provides a kind of LED shot-light, to improve the thermal diffusivity of the less shot-light of volume.Said LED shot-light comprises:

Said shot-light inner surface of outer cover and said lamp body one end constitute cavity, are provided with fan, circuit board in the said cavity;

Said lamp body is provided with air intake through hole and the air-out passage that communicates with said cavity respectively, and the fin with cambered surface is set on the said air-out vias inner walls, and the bearing of trend of said fin is identical with the bearing of trend of said electric fan; The cross section of said air-out passage is reduced by its air intake to its outlet air end gradually;

Further, said LED shot-light also comprises:

Lens carrier, it is provided with and suitable lens such as led light source number, shape; And the middle rack ventilating hole that communicates with said air-out passage that is provided with.Wherein, said lens are the optical lens of adjustment LED rising angle.In practical application, can select suitable optical lens according to the demand of rising angle.

Wherein, for the air in the said cavity is derived, the direction that is provided with of said fan is: air intake is towards said shot-light inner surface of outer cover, and outlet air end is towards said lamp body.

Further, in order to reach good thermal diffusivity, said lamp body can be selected the material of high thermal conductivity, and has certain mechanical strength, anti-flammability, and for example: said lamp body is designed to the cast aluminium lamp body.

Wherein, said lamp body can adopt with the shot-light shell and be threaded; Said lamp body can adopt with said substrate holder and be threaded or the fluid sealant stickup; Said substrate holder can adopt with said printing opacity support and be threaded.And, said lamp body, said substrate holder, said lens carrier can adopt together and be threaded.It is understandable that above-mentioned connected mode should not constitute the restriction to the utility model as just example.Those skilled in the art can select for use suitable connected mode that each parts are connected according to actual conditions.

To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

For convenience, be that the LED shot-light of MR16 is introduced with specification below, be not limited to the MR16 shot-light certainly.

Like Fig. 1, Fig. 2 and shown in Figure 3, a kind of LED shot-light that the utility model provided comprises: shot-light shell 1, circuit board 2, fan 3, lamp body 4, the substrate holder 5 that is provided with led light source 6, lens carrier 7;

Shot-light shell 1, lamp body 4, substrate holder 5, lens carrier 7 are connected successively; Wherein, concrete connected mode can adopt fluid sealant bonding or be threaded according to the actual requirements.

One end of the inner surface of shot-light shell 1 and lamp body 4 is connected to form cavity, is provided with circuit board 2, fan 3 in the said cavity; The direction that is provided with of fan 3 is: air intake is towards the inner surface of shot-light shell 1, and outlet air end is towards lamp body 4; It is understandable that shot-light shell 1 is used for the protection to shot-light inside, it is for having certain mechanical strength, electrical insulating property, the material of anti-flammability.

Lamp body 4 is provided with respectively air intake through hole and the air-out passage that connects with said cavity; Said air intake through hole is arranged on around the lamp body, gets into the passage of said cavity as outside air; Said air-out passage is arranged in the middle of the lamp body, discharges the passage of shot-light as inner air; Wherein, the inwall of said air-out passage is provided with the fin 8 with cambered surface, has specific crooked radian like the said fin of Fig. 3, has formed the runner of underspin.It is understandable that the bearing of trend of said fin is identical with the bearing of trend of the flabellum of fan 3, pass through fin 8 smoothly to guarantee the air that fan 3 is discharged, avoid taking place air and be obstructed at fin 8 front ends, it is not smooth to cause air to flow, and forms eddy current; Need to prove; The air-out channel cross-section that is provided with in the middle of the lamp body 4 is reduced to its outlet air end by its air intake gradually; As shown in Figure 2, said air-out passage is from top to bottom and smooth convergent runner, and the mode of this convergent can effectively improve the smoothness of circulation of air; Be provided with the substrate through-hole that connects with lamp body 4 air-out passages in the middle of on the substrate holder 5, to guarantee that substrate holder can be connected with the other end of lamp body 4, the shot-light inner air can be discharged in the external environment simultaneously.

Lens carrier 7 is provided with and led light source size, the suitable a plurality of lens of shape, and is provided with the rack ventilating hole that connects with lamp body 4 air outlet holes, can be discharged in the external environment to guarantee the shot-light inner air; Wherein, said lens can select to have the optical lens of specific rising angle according to the actual requirements.

Circuit board 2 is electrically connected with fan 3, substrate holder 5 respectively through lead, is used for driving LED light source 6 and fan 3 operate as normal.

Fig. 4 is a circulation of air direction sketch map.Wherein, 4a is the air intake through hole, be arranged on lamp body 4 around, 4b is the air-out passage, is arranged on the centre of lamp body 4.In the LED shot-light course of work that the utility model provided; Fan operates under the driving of circuit board; Around fan, form low pressure; Because the action of pressure outside air pours in said cavity via the air intake through hole on the lamp body, it is embodied in outside air and is inhaled into said cavity internal fan; The air that fan is discharged gets into the air-out passage of convergent through fin; The design of design of the radian of fin and lamp body air-out passage convergent makes air turn to and hinder bigger; Eddy current reduces; Thereby guarantee that air can flow out the air-out passage smoothly and get into external environment, realize the cross-ventilation of shot-light inside and external environment, thereby reach heat radiation the shot-light internal part.The LED shot-light that the utility model provides under the mutual effect of fan, air intake through hole, fin, air-out passage, guarantees that the smooth and easy of air flows fast, thereby can effectively improve the inner thermal diffusivity of the less LED shot-light of volume.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims

1. a LED shot-light is characterized in that, comprising:

2. LED shot-light according to claim 1 is characterized in that, also comprises:

Lens carrier, it is provided with the lens suitable with led light source; And the middle rack ventilating hole that communicates with said air-out passage that is provided with.

3. LED shot-light according to claim 2 is characterized in that, said lens are the optical lens of adjustment LED rising angle.

4. LED shot-light according to claim 1 is characterized in that, the direction that is provided with of said fan is:

Air intake is towards said shot-light inner surface of outer cover, and outlet air end is towards said lamp body.

5. LED shot-light according to claim 1 is characterized in that, said lamp body is the high thermal conductivity material.

6. LED shot-light according to claim 5 is characterized in that, said lamp body is the cast aluminium lamp body.

7. LED shot-light according to claim 1 is characterized in that, said lamp body adopts with said shot-light shell and is threaded.

8. according to any described LED shot-light of claim 1 to 7, it is characterized in that, said air intake through hole be arranged on lamp body around, said air-out passage is arranged in the middle of the lamp body.

9. LED shot-light according to claim 8 is characterized in that, said LED shot-light is the MR16 shot-light.